—Listen! There is a knock on the door．Who _____ it be?—It must be Jack．Just now I sent for him．
#87583
A
shall
B
can
C
must
D
might
推荐题目
The poor boy the test again; in that case, his mother will be very disappointed.
#88223
A
must have failed
B
might fail
C
could have failed
D
should fail
—How’s your tour around the North Lake? Is it beautiful?—It ________ be, but it is now heavily polluted.
#90468
A
will
B
would
C
should
D
must
Tony ____ the invitation, otherwise he would have attended your birthday party.
#86508
A
couldn’t have received
B
mustn’t have received
C
needn’t have received
D
shouldn’t have received
It_____ have been Tom that parked the car here, as he is the only one with a car.
#90416
A
may
B
can
C
must
D
should